Cordouan Lighthouse Plateau is an offshore rocky reef and artificial reef located 7000 metres from the Gironde coast. This site offers a challenging environment for advanced snorkellers, requiring boat access to reach the plateau surrounding the lighthouse. The area features shallow pools and rocky crevices with depths ranging from 0 to 10 metres. Conditions are variable, with strong currents, surf, and potential rip currents, alongside visibility reaching up to 15 metres. The habitat supports a variety of temperate marine life, including reef fish and invertebrates typical of the Atlantic Coast. Due to the exposed nature of the location and significant water movement, this site is suited only for experienced individuals.

The Tarantini submarine is a wreck dive located off the Gironde coast in France. Accessible by boat, the site features a moderate current, and divers are advised to time their entry with the slack period for a more relaxed experience. Visibility at the site typically ranges between 5 and 10 metres. Water temperatures are warm, fluctuating between 25 and 30 degrees Celsius throughout the year. The surrounding habitat supports a variety of regional reef fish and invertebrates. Divers should check locally for current facility availability before planning a trip, as local provisions can vary by season.

Le Tirranna is a deep-water dive site located off the Gironde coast, France. Divers access the site by boat to reach depths between 36 and 38 metres. The underwater environment is defined by its reef structure. Conditions at the site include a moderate current and visibility ranging from 5 to 10 metres. Water temperatures fluctuate between 11 and 16C throughout the year. Due to the depth and current, divers should monitor their position closely and ensure their certification level is appropriate for these conditions. Always confirm the current strength with your dive operator before descending.

Le Remorqueur is a wreck dive located off the Atlantic Coast of France, resting at depths between 32 and 34 metres. This site is suitable for advanced divers only due to the significant depth. Access is exclusively by boat, and divers should remain vigilant for surface boat traffic during entry and exit. Visibility varies from 10 to 30 metres, and currents are generally mild. Water temperatures range from 11C to 17C, necessitating appropriate thermal protection. The wreck structure provides a habitat for various marine life typical of the region, including reef fish and invertebrates.

Fort Louvois offers a unique snorkeling experience around the base of a 17th-century maritime fort located in Arcachon Bay. Snorkellers can explore the submerged causeway and the fort's foundations, which provide a distinct structural environment. The site is suitable for intermediate snorkellers and allows for both shore and boat entries. Water temperatures fluctuate throughout the year, ranging from 10C in the winter months to 21C in August. Due to the nature of the location, conditions can vary, and visitors should plan their activity accordingly.